Switching from one drug to another

You can try:

"Drug Substitution"[Mesh] OR switch*[tiab] OR transfer*[tiab] OR transition*[tiab]

I also tried convert*[tiab] OR conversion*[tiab] OR swap*[tiab] for my search, but they didn't return any results after being combined with the drugs of interest.

taper*[tiab] OR induction*[tiab] OR initiat&[tiab] may be of use. The taper part applies to the drug which is being discontinued, and the induction/initiation part applies to the drug being started, of course - but this language is used in drug switching as well as monodrug therapy.

If the drugs are not drugs of abuse, then you could also try:
substitut*[tiab]

However, this search is NO GOOD if you're switching from, say, methadone to suboxone, because then you get all this stuff about opioid substitution, which is not helpful.

Physical or built environment or environment design in the hospital

Physical or built environment or environment design in the hospital

"Health Facility Environment"[Mesh] OR "Environment"[Mesh:NoExp] OR "Environment Design"[Mesh] OR "Facility Design and Construction"[Mesh]

combine the above with the relevant MeSH for the department/unit or facility in your question (e.g. "Psychiatric Department, Hospital"[Mesh] OR "Hospitals, Psychiatric"[Mesh])

You can also try keywords such as:
"physical environment"[tiab] OR "built environment"[tiab] OR architectur*[tiab] OR "interior design"[tiab]
however, for my question these only resulted in 1 additional article, so not especially helpful.

Long term use of a drug

In 2016, the term "Long Term Adverse Effects" was added to MeSH! Hooray!

However, we still need to be able to find articles pre-2016 indexing. Here are some strategies:

"Time Factors"[Mesh] (previous indexing for the concept of long term)

"Prescription Drug Overuse"[Mesh]


Keywords:
"long term"[tiab] OR "chronic use"[tiab] OR "chronic usage"[tiab] OR "prolonged use"[tiab] OR "prolonged usage"[tiab] OR longterm[tiab] OR long-time[tiab] OR longtime[tiab] OR longstanding[tiab] OR long-standing[tiab] OR "prolonged utilization"[tiab] OR "prolonged utilisation"[tiab] OR "chronic use"[tiab] OR "chronic usage"[tiab] OR "chronic utilization"[tiab] OR "chronic utilisation"[tiab] OR "chronic effect"[tiab] OR "chronic effects"[tiab]

You can also add the name of the drug in question, e.g.:
"chronic benzodiazepine"[tiab] OR "chronic benzodiazepines"[tiab] OR "prolonged benzodiazepine"[tiab] OR "prolonged benzodiazepines"[tiab]
or
"chronic melatonin"[tiab] OR "prolonged melatonin"[tiab]

Preoperative Period

To find or exclude preoperative period from your results:

"Preoperative Period"[Mesh] OR "Preoperative Care"[Mesh]
OR
"preoperative"[tiab] OR "pre-operative"[tiab] OR "preadmission"[tiab] OR "pre-admission"[tiab] OR presurg*[tiab] OR pre-surg*[tiab] OR preprocedur*[tiab] OR pre-procedur*[tiab] OR premedicat*[tiab] OR pre-medicat*[tiab]

CINAHL:
MH "Preoperative Period+" OR MH "Preoperative Care+"

EMBASE:
exp preoperative period/